As an additional source of income, he also worked for Ansett Airlines until his early retirement in 1994, which enabled him to devote more of his time to his abiding interest in genealogy.

After Glaskin's death in 2000, he moved from Perth to Canberra to be closer to van de Pas family members.

[citation needed] Once settled in Australia, Pas wrote, co-authored and contributed to numerous genealogy books and, later on, web articles.

His Genealogics website continues to be one of the few free online reference databases covering the medieval and other periods, and is nowadays administered by Ian Fettes and Leslie Mahler.

[5] On 25 October 1988, he was invited by the Australian Prime Minister Bob Hawke to have lunch with the visiting Queen Beatrix of the Netherlands and her husband Prince Claus.